This is part of the function module

Calculate the moments of the distribution of input quantities

Examples

Glossary of keywords and components

Description of components

By default this Action calculates the following quantities. These quantities can be referenced elsewhere in the input by using this Action's label followed by a dot and the name of the quantity required from the list below.

Quantity	Description
moment	the central moments of the distribution of values. The second central moment would be referenced elsewhere in the input file using label.moment-2, the third as label.moment-3, etc.

Compulsory keywords

POWERS

calculate the central moments of the distribution of collective variables. The \(m\)th central moment of a distribution is calculated using \(\frac{1}{N} \sum_{i=1}^N ( s_i - \overline{s} )^m \), where \(\overline{s}\) is the average for the distribution. The POWERS keyword takes a lists of integers as input or a range. Each integer is a value of \(m\). The final calculated values can be referenced using moment- \(m\).

ARG

the values input to this function